KUI does an unboxing video of the new GHK DDM4 V3 gas blowback rifle. The GHK DD PDW V3 GBB features a new bolt carrier with increased cylinder capacity, a new nozzle for improved accuracy, a new quick HOP adjustment system, a new stainless steel V3 buffer, new GMAG V3 magazines with increased air capacity and gas efficiency, a Cerakote finish for durability, and an optional reinforced recoil spring for enhanced realism.